Actuator device

Patent metadata

Field	Value
Publication number	US-12468144-B2
Application number	US-202218265878-A
Country	US
Kind code	B2
Filing date	Jan 12, 2022
Priority date	Jan 29, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A first embodiment of the present invention relates to an actuator device comprising: a housing; a holder disposed inside the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a rigid mover coupled to the holder; and a damper coupled to the rigid mover, wherein the rigid mover comprises a protruding portion coupled to the housing by the damper.

First claim

The invention claimed is:

1 . An actuator device comprising:
a housing; a holder disposed in the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a rigid mover coupled to the holder; and a damper coupled to the rigid mover, wherein a first portion of the housing is disposed between the rigid mover and the moving plate, wherein the rigid mover comprises a body portion disposed on an opposite side of the moving plate with respect to the first portion of the housing, a coupling portion extending from the body portion and coupled with the holder, and a protruding portion protruding from the body portion, and wherein the protruding portion of the rigid mover is coupled with the housing by the damper.

2 . The actuator device of claim 1 , wherein the housing comprises a groove disposed with at least a portion of the protruding portion.

3 . The actuator device of claim 2 , wherein the groove of the housing is open to an outside of the housing.

4 . The actuator device of claim 2 , wherein the protruding portion of the rigid mover comprises a first protruding region protruding to one side and a second protruding region protruding to the other side.

5 . The actuator device of claim 4 , wherein the groove of the housing comprises a first groove disposed with at least a portion of the first protruding region and a second groove disposed with at least a portion of the second protruding region.

6 . The actuator device of claim 2 , wherein the groove of the housing is greater than the protruding portion of the rigid mover and is spaced apart from the protruding portion in an initial state and during operation.

7 . The actuator device of claim 2 , wherein the groove of the housing and the protruding portion of the rigid mover are in contact with each other by an external impact.

8 . The actuator device of claim 1 , wherein the protruding portion is disposed on a central region of the rigid mover.

9 . A camera device comprising:
a printed circuit board; an image sensor disposed on the printed circuit board; the actuator device of claim 1 ; and a lens disposed on an optical path formed by the reflective member of the actuator device and the image sensor.

10 . An optical device comprising:
a main body; the camera device of claim 9 disposed on the body; and a display disposed on the main body and configured to output an image photographed by the camera device.

11 . An actuator device comprising:
a housing; a holder disposed in the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a rigid mover coupled with the holder; and a damper connecting the rigid mover and the housing, wherein a first portion of the housing is disposed between the rigid mover and the moving plate, wherein the rigid mover comprises a body portion disposed on an opposite side of the moving plate with respect to the first portion of the housing, a coupling portion extending from the body portion and coupled with the holder, and a protruding portion protruding from the body portion, and wherein the damper connects the protruding portion of the rigid mover and the housing.

12 . The actuator device of claim 11 , wherein the damper is disposed on at least one of an upper portion and a lower portion of the first portion of the housing.

13 . The actuator device of claim 11 , comprising:
a first magnet disposed on the rigid mover; and a second magnet disposed on the housing and configured to generate a repulsive force with the first magnet, wherein at least a portion of the second magnet is disposed between the first magnet and the moving plate, and is disposed on an opposite side of the moving plate with respect to the first portion of the housing.

14 . The actuator device of claim 11 , wherein the housing comprises a groove,
wherein at least a portion of the protruding portion of the rigid mover is disposed in the groove of the housing, and wherein at least a portion of the damper is disposed in the groove of the housing and between the protruding portion of the rigid mover and the housing.

15 . The actuator device of claim 14 , wherein the groove of the housing comprises a first groove portion and a second groove portion recessed from the first groove portion, and
wherein at least a portion of the damper is disposed in the second groove portion of the housing.

16 . The actuator device of claim 11 , wherein the protruding portion of the rigid mover comprises a first protruding portion formed on an upper surface of the body portion of the rigid mover, and a second protruding portion formed on a lower surface of the body portion of the rigid mover.

17 . The actuator device of claim 16 , wherein the housing comprises a first surface facing the upper surface of the body portion of the rigid mover, and a second surface facing the lower surface of the body portion of the rigid mover,
wherein the housing comprises a first groove formed on the first surface of the housing, and a second groove formed on the second surface of the housing, wherein at least a portion of the first protruding portion of the rigid mover is disposed in the first groove of the housing, and wherein at least a portion of the second protruding portion of the rigid mover is disposed in the second groove of the housing.

18 . An actuator device comprising:
a housing; a holder disposed in the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a rigid mover coupled with the holder; a damper connecting the rigid mover and the housing; a first magnet disposed on the rigid mover; and a second magnet disposed on the housing and configured to generate a repulsive force with the first magnet, wherein a first portion of the housing is disposed between the rigid mover and the moving plate, and wherein at least a portion of the second magnet is disposed between the first magnet and the moving plate, and is disposed on an opposite side of the moving plate with respect to the first portion of the housing.

19 . The actuator device of claim 18 , wherein the rigid mover comprises a protruding portion coupled with the housing by the damper, and
wherein the housing comprises a groove disposed with at least a portion of the protruding portion.

20 . The actuator device of claim 19 , wherein the protruding portion of the rigid mover comprises a first protruding region protruding to one side and a second protruding region protruding to the other side.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Sung Guk
• Lee Seong Min

Classifications

• G03B2205/0069

  using electromagnetic actuators, e.g. voice coils · CPC title

• G03B3/10

  Power-operated focusing · CPC title

• G02B27/646

  compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68) · CPC title

• G02B7/09

  adapted for automatic focusing or varying magnification · CPC title

• G03B17/02

  Bodies · CPC title